Description
The ProWatercraft Intake Pump Stuffer SquareNose SuperJet is designed to improve pump efficiency, water flow, and acceleration feel by filling the unused air pocket in the pump tunnel. When water rushes through an open or concave tunnel area, it can drag air, create cavitation, and reduce drive. This ProWatercraft intake pump stuffer helps clean up that flow so the ski hooks up harder and feels more connected to the water.
- Designed for Yamaha SquareNose SuperJet applications
- Helps reduce cavitation caused by unused pump tunnel volume
- Can improve top speed and overall drive depending on setup
- Helps the ski feel more sucked down and planted under acceleration
- Cost effective performance upgrade for stand up and sport watercraft
- Requires proper RTV silicone installation for best results
This upgrade is especially useful for riders who want more efficient pump loading without a major engine change. By smoothing the tunnel area and filling the low pressure pocket, the stuffer helps reduce lost drive and improves the way water feeds the pump. The result can be better hookup, stronger acceleration feel, and more consistent performance through turns and rough water.
INSTALLATION:
- Test fit the stuffer before applying silicone
- Clean the mounting surface thoroughly with brake cleaner, acetone, or a similar prep solvent
- Use only the recommended high quality RTV silicone adhesive
- Allow approximately 24 hours of cure time before riding
- Inspect the stuffer seal a few times per season
- Do not ride if the stuffer appears loose or the seal has failed
FAQ:
- How does a pump stuffer improve performance?
It fills unused pump tunnel volume, which helps reduce cavitation and improves water flow into the pump. - Can it improve speed?
Many setups see speed and hookup gains, but results can vary based on hull, intake grate, pump condition, and setup. - Can I use any silicone?
No. Use the recommended RTV silicone. Using the wrong adhesive can affect fitment, performance, and warranty coverage. - Will it work with aftermarket intake grates?
It works with many grates, but some top loader designs may reduce the expected performance gain.
Available at IPDRacing.com, the ProWatercraft Intake Pump Stuffer SquareNose SuperJet is a high value pump performance upgrade for riders who want better hookup, cleaner flow, and a more efficient watercraft setup.








